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SSL_CTX_USE_CERTIFICATE(3)

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NAME    [Toc]    [Back]

       SSL_CTX_use_certificate, SSL_CTX_use_certificate_ASN1,
       SSL_CTX_use_certificate_file, SSL_use_certificate,
       SSL_use_certificate_ASN1, SSL_use_certificate_file,
       SSL_CTX_use_certificate_chain_file, SSL_CTX_use_PrivateKey,
 SSL_CTX_use_PrivateKey_ASN1, SSL_CTX_use_PrivateKey_file,
 SSL_CTX_use_RSAPrivateKey,
       SSL_CTX_use_RSAPrivateKey_ASN1, SSL_CTX_use_RSAPrivateKey_file,
 SSL_use_PrivateKey_file, SSL_use_PrivateKey_ASN1,
 SSL_use_PrivateKey, SSL_use_RSAPrivateKey,
       SSL_use_RSAPrivateKey_ASN1, SSL_use_RSAPrivateKey_file,
       SSL_CTX_check_private_key, SSL_check_private_key - load
       certificate and key data

SYNOPSIS    [Toc]    [Back]

        #include <openssl/ssl.h>

        int SSL_CTX_use_certificate(SSL_CTX *ctx, X509 *x);
        int SSL_CTX_use_certificate_ASN1(SSL_CTX *ctx,  int  len,
unsigned char *d);
        int SSL_CTX_use_certificate_file(SSL_CTX *ctx, const char
*file, int type);
        int SSL_use_certificate(SSL *ssl, X509 *x);
        int SSL_use_certificate_ASN1(SSL *ssl, unsigned char  *d,
int len);
        int  SSL_use_certificate_file(SSL *ssl, const char *file,
int type);

        int SSL_CTX_use_certificate_chain_file(SSL_CTX *ctx, const char *file);

        int SSL_CTX_use_PrivateKey(SSL_CTX *ctx, EVP_PKEY *pkey);
        int SSL_CTX_use_PrivateKey_ASN1(int pk, SSL_CTX *ctx, unsigned char *d,
                                        long len);
        int  SSL_CTX_use_PrivateKey_file(SSL_CTX *ctx, const char
*file, int type);
        int SSL_CTX_use_RSAPrivateKey(SSL_CTX *ctx, RSA *rsa);
        int SSL_CTX_use_RSAPrivateKey_ASN1(SSL_CTX *ctx, unsigned
char *d, long len);
        int  SSL_CTX_use_RSAPrivateKey_file(SSL_CTX  *ctx,  const
char *file, int type);
        int SSL_use_PrivateKey(SSL *ssl, EVP_PKEY *pkey);
        int  SSL_use_PrivateKey_ASN1(int  pk,SSL  *ssl,  unsigned
char *d, long len);
        int  SSL_use_PrivateKey_file(SSL  *ssl, const char *file,
int type);
        int SSL_use_RSAPrivateKey(SSL *ssl, RSA *rsa);
        int SSL_use_RSAPrivateKey_ASN1(SSL  *ssl,  unsigned  char
*d, long len);
        int   SSL_use_RSAPrivateKey_file(SSL   *ssl,  const  char
*file, int type);

        int SSL_CTX_check_private_key(SSL_CTX *ctx);
        int SSL_check_private_key(SSL *ssl);

DESCRIPTION    [Toc]    [Back]

       These functions load the certificates and private keys
       into the SSL_CTX or SSL object, respectively.

       The SSL_CTX_* class of functions loads the certificates
       and keys into the SSL_CTX object ctx. The information is
       passed to SSL objects ssl created from ctx with SSL_new(3)
       by copying, so that changes applied to ctx do not propagate
 to already existing SSL objects.

       The SSL_* class of functions only loads certificates and
       keys into a specific SSL object. The specific information
       is  kept, when SSL_clear(3) is called for this SSL object.

       SSL_CTX_use_certificate() loads the certificate x into
       ctx, SSL_use_certificate() loads x into ssl. The rest of
       the certificates needed to form the complete certificate
       chain can be specified using the
       SSL_CTX_add_extra_chain_cert(3) function.

       SSL_CTX_use_certificate_ASN1() loads the ASN1 encoded certificate
 from the memory location d (with length len) into
       ctx, SSL_use_certificate_ASN1() loads the ASN1 encoded
       certificate into ssl.

       SSL_CTX_use_certificate_file() loads the first certificate
       stored in file into ctx. The formatting type of the certificate
 must be specified from the known types SSL_FILETYPE_PEM,
 SSL_FILETYPE_ASN1.  SSL_use_certificate_file()
       loads the certificate from file into ssl.  See the NOTES
       section on why SSL_CTX_use_certificate_chain_file() should
       be preferred.

       SSL_CTX_use_certificate_chain_file() loads a certificate
       chain from file into ctx. The certificates must be in PEM
       format and must be sorted starting with the subject's certificate
 (actual client or server certificate), followed
       by intermediate CA certificates if applicable, and ending
       at the highest level (root) CA.  There is no corresponding
       function working on a single SSL object.

       SSL_CTX_use_PrivateKey() adds pkey as private key to  ctx.
       SSL_CTX_use_RSAPrivateKey() adds the private key rsa of
       type RSA to ctx. SSL_use_PrivateKey() adds pkey as private
       key to ssl; SSL_use_RSAPrivateKey() adds rsa as private
       key of type RSA to ssl.

       SSL_CTX_use_PrivateKey_ASN1() adds the private key of type
       pk stored at memory location d (length len) to ctx.
       SSL_CTX_use_RSAPrivateKey_ASN1() adds the private key of
       type  RSA stored at memory location d (length len) to ctx.
       SSL_use_PrivateKey_ASN1() and SSL_use_RSAPrivateKey_ASN1()
       add the private key to ssl.

       SSL_CTX_use_PrivateKey_file() adds the first private key
       found in file to ctx. The formatting type of the certificate
 must be specified from the known types SSL_FILETYPE_PEM,
 SSL_FILETYPE_ASN1.  SSL_CTX_use_RSAPri-
       vateKey_file() adds the first private RSA key found in
       file to ctx. SSL_use_PrivateKey_file() adds the first private
 key found in file to ssl; SSL_use_RSAPri-
       vateKey_file() adds the first private RSA key found to
       ssl.

       SSL_CTX_check_private_key() checks the consistency of a
       private key with the corresponding certificate loaded into
       ctx. If more than one key/certificate pair (RSA/DSA) is
       installed, the last item installed will be checked. If
       e.g. the last item was a RSA certificate or key, the RSA
       key/certificate pair will be checked. SSL_check_pri-
       vate_key() performs the same check for ssl. If no key/certificate
 was explicitly added for this ssl, the last item
       added into ctx will be checked.

NOTES    [Toc]    [Back]

       The internal certificate store of OpenSSL can hold two
       private key/certificate pairs at a time: one key/certificate
 of type RSA and one key/certificate of type DSA. The
       certificate used depends on the cipher select, see also
       SSL_CTX_set_cipher_list(3).

       When reading certificates and private keys from file,
       files of type SSL_FILETYPE_ASN1 (also known as DER, binary
       encoding) can only contain one certificate or private key,
       consequently SSL_CTX_use_certificate_chain_file() is only
       applicable to PEM formatting.  Files of type SSL_FILETYPE_PEM
 can contain more than one item.

       SSL_CTX_use_certificate_chain_file() adds the first certificate
 found in the file to the certificate store. The
       other certificates are added to the store of chain certificates
 using SSL_CTX_add_extra_chain_cert(3).  There
       exists only one extra chain store, so that the same chain
       is appended to both types of certificates, RSA and DSA! If
       it is not intended to use both type of certificate at the
       same time, it is recommended to use the SSL_CTX_use_cer-
       tificate_chain_file() instead of the SSL_CTX_use_certifi-
       cate_file() function in order to allow the use of complete
       certificate chains even when no trusted CA storage is used
       or when the CA issuing the certificate shall not be added
       to the trusted CA storage.

       If additional certificates are needed to complete the
       chain during the TLS negotiation, CA certificates are
       additionally looked up in the locations of trusted CA certificates,
 see SSL_CTX_load_verify_locations(3).

       The private keys loaded from file can be encrypted. In
       order to successfully load encrypted keys, a function
       returning the passphrase must have been supplied, see
       SSL_CTX_set_default_passwd_cb(3).  (Certificate files
       might be encrypted as well from the technical point of
       view, it however does not make sense as the data in the
       certificate is considered public anyway.)

RETURN VALUES    [Toc]    [Back]

       On success, the functions return 1.  Otherwise check out
       the error stack to find out the reason.

SEE ALSO    [Toc]    [Back]

      
      
       ssl(3), SSL_new(3), SSL_clear(3),
       SSL_CTX_load_verify_locations(3),
       SSL_CTX_set_default_passwd_cb(3),
       SSL_CTX_set_cipher_list(3), SSL_CTX_set_client_cert_cb(3),
       SSL_CTX_add_extra_chain_cert(3)


OpenBSD 3.6                 2003-11-16                          4
[ Back ]
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